# Solve for x (1-tan(x)^2)/(1+tan(x)^2)=cos(2x)

Solve for x (1-tan(x)^2)/(1+tan(x)^2)=cos(2x)
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### Name

Name two hundred eighty-two million seven hundred seventy-five thousand five hundred ninety-one

### Interesting facts

• 282775591 has 8 divisors, whose sum is 323512704
• The reverse of 282775591 is 195577282
• Previous prime number is 971

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 46
• Digital Root 1

### Name

Name five hundred fifteen million six hundred fifty-nine thousand eight hundred ninety-one

### Interesting facts

• 515659891 has 4 divisors, whose sum is 516501712
• The reverse of 515659891 is 198956515
• Previous prime number is 613

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 49
• Digital Root 4

### Name

Name one billion three hundred twenty-two million eight hundred ninety-eight thousand four hundred ninety-two

### Interesting facts

• 1322898492 has 64 divisors, whose sum is 4020503040
• The reverse of 1322898492 is 2948982231
• Previous prime number is 1103

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 48
• Digital Root 3